Analyzer Terminal Contact Detection for Glucose Measurement Accuracy
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Solution Overview
Problem
Existing blood glucose level measurers face erroneous measurements due to abnormalities in detection terminal pairs, such as contact failure, leading to incorrect calibration curve selection and deviated glucose level readings.
Innovation Solution
An analyzer with detection terminal pairs capable of selecting a contacting or non-contacting state, an abnormality detector to assess terminal pair states, and a controller to withhold analysis when abnormalities are detected, ensuring accurate calibration curve selection and reliable glucose level measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If detection terminal pairs are used to recognize calibration curve information, then calibration curve selection is automated, but measurement errors occur due to terminal contact failure
Solution Approach 1:
The abnormality detection function is activated before the measurement process to check whether the detection terminal pair is in a normal contact state. This preliminary detection prevents erroneous measurements from occurring in the first place by identifying terminal abnormalities before they can affect the calibration curve selection and measurement results.
Solution Approach 2:
The system incorporates a feedback mechanism where the detector continuously monitors the contact state of detection terminal pairs and provides information to the abnormality detector. This feedback loop enables real-time identification of terminal abnormalities and allows the system to adjust or alert users before incorrect calibration curves are selected, thereby maintaining measurement reliability.
2Device complexity
If leaf spring terminals are used for detection, then contact detection is simplified, but elasticity reduction due to repetitive use causes contact failure
Solution Approach 1:
The system performs preliminary detection of terminal contact status before each measurement to identify terminals that have lost elasticity or are failing. This allows the system to detect durability issues early and prevent measurement errors, compensating for the limited lifespan of leaf spring terminals.
Solution Approach 2:
The detection terminal pair performs self-detection of its own contact status through the detector. The terminal structure monitors its own functionality, automatically identifying when elasticity reduction or contact failure occurs without requiring external intervention, thereby extending effective service life through self-diagnosis.
3Measurement precision
If manual calibration curve selection is used, then measurement accuracy is maintained, but operation time increases
Solution Approach 1:
The detector provides real-time feedback on the contact state of detection terminal pairs, enabling automatic identification of the appropriate calibration curve based on terminal configuration. This feedback mechanism replaces manual selection with automated detection, maintaining measurement precision while significantly reducing the time required for calibration curve selection.
Solution Approach 2:
The patent replaces the manual mechanical selection process with an automated electrical detection system. The detector and abnormality detector use electrical signals to automatically identify terminal contact states and select calibration curves, substituting human operation with electronic automation while preserving measurement accuracy.
Data Source
AI summary
The present invention relates to an analyzer (1) to be used with an analytical tool (2) mounted thereto and used for analyzing a particular component contained in a sample supplied to the analytical tool (2). The analyzer (1) includes at least one detection terminal pair (11, 12) including a first and a second detection terminals (11A, 11B, 12A, 12B) which are capable of selecting a mutually contacting state and a non-contacting state, a detector (15) for detecting the state of contact of the first and the second detection terminals (11A, 11B, 12A, 12B), and an abnormality detector (16) for detecting an abnormality of the at least one detection terminal pair (11, 12) based on the detection result by the detector (15).